Annealing-oven.



A. J. MEIER.

ANNEALING OVEN.

APPLICATION FILED JUNE 5,1911,

1,024,217. Patented Apr. 23, 1912.

6 SHEETS-$HEET 2.

A. J. MEIER.

ANNEALING OVEN.

APPLICATION FILED mm 5,1911.

Patented Apr. 23, 1912.

6 SHEBTBSHEET 4.

6 SHEETS-SHEET 5.

Fir 6.

Patented Apr. 23, 1912.

A. J. MEIER.

Y ANNEALING OVEN.

APPLICATION FILED JUNE 5,1911

Patented. Apr. 23, 1912 6 SHEETS-SHEET 6.

M w 4]) WW 'ti'o'nal' view" taken on 't UrrED s'rn'rus ALBERT J. MEIER, OF GLENDALE, MISSOURI.

ANNEALING-OVEN.

To all whom it may cement:

Be it known that I, ALBERT J. MEIER, a citizen, of the United States, residing at Glendale, in the county of St. Louis and State of Missouri,have invented certain new and useful Improvements in Annealing- Ovens, of. which the following is a speci cationm This inventiomrelates to certain new and useful improvements in annealing ovens.

The ob ect (it the invention is to provide an improved structure-in which the articles td be annealed are placed on a rotating carrier and moved through an annealing chamber, and to further provide an oven of this type in which the parts are constructed of tile and in which the latter is also utilized as a nieans for protecting the metal parts against the action of the heat.

In the drawings: Figure 1 is a front elevation of an oven constructed in accordance with the present invention, Fig.3 is a side elevation, Fi 3 is a central vertical .sectional view, i 4.- is a horizontal sectional view taken on t 1e line 4-4 of Fig. 3, Fig. 5 is a horizontal sectional view taken on the line 5-5 of Fig. 3, Fl 6 is a vertical sec- 'e'" line 6-6' of Fig. 5, and Fig. 7 is a vertical sectional view taken on the line 77 of Fig. 5.

The annealing oven is constructed of brick or other suitable material and is formed to have a central opening 1", and a circular heating chamber 1, which latter has a closed bottom formed by the two concentric spaced annuli 1. The roof and side walls of the chamber 1 are constructed 'of tiles, the roof being of gable shape and being formed of a series of pairs of sloping tiles 2 having their inner ends meeting at a point and secured together by a tongue and groove joint 3 and having their outer ends resting on the fire bricks 4 which form the side walls of the heating chamber.

In Fig. 5 the fire chamber is shown as provided with a partition 6, which divides the same into two compartments 7 and 8', each having a gas burner 9 extending thereinto, though obviously any other suitable source of heat may be utilized in place of the gas burners.

The annealing chamber, which is of circular form, has an open bottom which is pro- Speciflcation of Letters Patent.

Application filed June 5, 1911.

proper posi Obviously,

Patented Apr. as, was.

Serial No. 631,284.

vided by the space between the concentric annuli 1'. The roof of the annealing chamber is of gable-shape and is formed of a series of pairs of sloping tiles 8 having their inner ends meeting at a oint and secured together by a tongue an groove joint 9', the outer ends of the tiles 8 being grooved and resting on the tiles 10, which latter form the side walls of the annealin chamber.

The lower ends of the tiles 10 an the annuli 1' which form the bottom of the heating chamber are provided with a tongue and groovejoint as illustrated at 11 in the drawings. A series of spaced tiles or fire-bricks 6 are secured to the side walls of the heating chamber and abut the upper ends of tiles l0 and 8 of the annealing chamber in order to hold thefupper ends of the tiles 10 in ion.

From Fig. 3 of the drawings it will be seen that the heating chamber is spaced from the sides and top of the annealing chamber whereby heat passages are formed to permit the heat to circulate about the annealing chamber.

In Fig. 5 of the drawings the arrows illustrate the course of the heat,.the latter passing from the burners 9' inopposite directions through the heating chamber and finally escapes up through the stack 12. the partition 6, which may either be tile or fire-brick, causes the heat from one compartment of the fire chamber to pass through one part of the heating chamber, and the heat from the other compartment of the fire chamber to pass through the other part of the heating chamber, for which purpose the partition 6 abuts the tiles 10 which {)orm the outer wall of the annealing cham- A partition 6 illustrated in Fig; 4: extends over the tiles 8, 8 at a point in alinement with the partition 6 and serves to direct the heat coming from the compartments 7 and 8, so that the heat will follow the course indicated by the arrows in Fig. 4.

As shown in Figs. 6 and 7, the lower end of the stack 12 enters the roof of the heating chamber 1, the opening through which the stack projects being lined with fire-bricks 13, as seen in Fig. 6.

The present invention is especially adapted for annealing steel packages,

though ebviously other articles may be annealed as well. The articles designated A to be annealed are placed on the tiles 14, which form or constitute the floor or platform of the rotating carrier, the latter including an annularcasting 15, preferably made in sec-' tions and formed with radial arms 16, which arms at their inner ends fit in notches provided therefor in a second casting 17 which is rigidly mounted on the vertical shaft 18, the latter being arranged in the space 1 of the oven. A third casting 19 is mounted on the shaft 18, and has perforated portions 20, through which the upper ends of long bolts 21 extend, the latter at their lower ends being passed through the perforations of enlarged portions 22 formed on the radial arms 16-, the ends .of the bolts 21 being rigidly secured to the parts 20 and 22, whereby-the casting 15, is supported and braced at its peripheral portion in an obv-ious manner.

The vertical shaft 18 rests in a toe bearing 23 formed in the concrete or other base 24, the entire oven structure resting on the latter. At itsnpper end 'the shaft 18 bears a miter-gear 25, which meshes with a mitergear 26 carried by a horizontal shaft 27, the shaft 27 beingdriven by a gear 28 affixed thereto and a worm 29, which latter may be driven by any suitable means.

The upper end of the vertical shaft 18 is journaled in a bearing 30 that is supported by the I-beams 31, which latter are in turn supported b the I-beams 32, which rest on the top of t e oven and are disposed transverse to the I-beams 31, the horizontal shaft 27 being journaled in bearings 33, that are secured to the I-beams 31. p

A conical shield 34 surrounds shaft 18 and rests on the casting 35, which latter surrounds the shaft 18 and is suspended by means of long vertical bolts 36, which latter have their upper ends supported from the I-beams .31 and have their lower ends passed through the up er part of casting 35 and being secured totlie latter. 34 acts to prevent anything from dropping into or entering the base portion of the oven.

Casting 35 is formed with a horizontal annular shelf-like part 37 and with vertical annular faces 38 and 39, the latter having a horizontal annular ledge 40 on which tiles 41 seat, the latter at their upper ends engaging the inner of the two annuli l, which constitute the bottom of the heating chamber 1. The shelf-like part 37 has an annular tongue 42 which is received in an annular groove provided therefor in the under face of said inner of the two annuli l, which constitute the bottom of the heating chamber, whereby it will be seen that the inner annuli is supported in posit-ion against downward movement.

The tiles 14, which form the floor of the the outer sides of the The shield having an annular apron 45 formed with an annular horizontal ledge 46, on which the tiles 47 seat, the latter having their upper ends beveled and engaged with a downwardly inclined projection 48 formed on the bottom faces of the tiles 14, whereby the tiles are held against outward move- 'ment. The annular ledge 46 is provided with a raised annular lip 51, which engages theouter sides of the lower ends of the tiles 47, to hold same against outward movement. The annular ledge 40 of casting 35 is provided with an annular lip 49 to engage lower ends of tiles 41 to hold the latter against outward'movement, and the upper ends of tiles 41 are beveled to engage with the downwardly inclined projection 50 of the inner annuli 1 of the bottom of the heating chamber.

It will be observed from the foregoing that the tiles 41.and 47 act to protect their respective castings 35 and 15 against the action of the heat, and, moreover, said tiles are held in position by virtue of the interlocking connections described.

The outer oven wall is formed with an entrance opening 51, through which the articles A are inserted, the latter being removed through the exit opening 52. The entrance opening 51 has a horizontal plate 53 therein located on a level or alined with the tops of the tiles 14 which constitute the floor of the revolving carrier, so' that the articles or the like to be annealed can be readily slid onto the tiles 14.

A wall 54 is built up within each compartment 7 and 8 of the fire has its front face arranged in step-like formation, so as to cause the flames issuing from the burners 9 to be deflected upwardly to enter the heating chamber 1 above the bottom thereof.

From the foregoing it will be seen that,

orm of the revolving carbottom of the the floor or plat rier constitutes or forms the annealing chamber.

What 1s claimed is:

1. An annealing oven including an annular heating chamber embodying a bottom formed of two spaced annuli, a side wall chamber, and

seating on each annulus, and a top composed of a series of pairs of spaced tiles having their inner ends meeting at a point and connected by a tongue and groove joint and having their lower ends seating on the upper ends of the side walls.

2. An annealing oven including an annular heating chamber embodying a bottom formed of two spaced annuli, a side Wall seating on each annulus, a top composed 10. formed of serles of pairs of tiles having of a series of pairs of spaced tiles having their inner ends meeting at a point and contheir inner ends meeting in a point and connected by a tongue and groove joint and having their outer ends recessed and seating opening,

on and receiving the upper ends of said tiles forming the side walls of the annealing chamber. 3. An annealing oven having a central an annular annealing chamber having an open bottom, a vertical shaft arranged in said oven opening, a casting borne by said shaft having a horizontal portion and a depending apron formed with a horizontal ledge, said ledge being formed with a raised lip at its outer end, a series of tiles seating on said horizontal portion of the casting and formed with downwardly extending projections, and a series of tiles seating on said ledge and engaged with the lip thereof and having beveled upper ends engaged by said tile projections.

4:. In an annealing oven, an annular heating chamber havlng an annular annealing chamber therein, said annealing chamber having an open bottom, a vertical shaft ar ranged in the center of the space defined by the annular heating chamber, a casing mounted on said shaft and arranged be neath the open bottom of the annealing chamber a second casting on the shaft, and a series of diagonal rods each connected 'at their ends to the two castings.

5. In combination with an annealing oven having -a central space and an annealing chamber surrounding said space, a shaft arranged in said space, a rotating carrier on the shaft projecting into said open bottom of the annealing chamber, a conical shield surrounding the shaft and closing the lower end portion of said central space of the oven, and means to support the shield from the even. a

6. In an annealing oven, an annealing chamber formed with an open bottom, a heating chamber surrounding the sides and the top of the annealing chamber, a carrier forming the bottom of the annealing chamber, and a fire chamber divided into a plurality of compartments which communicate with the heating chamber so as to inject the heat into the heating chamber so that the heat courses in opposite directions inthe latter.

7. In combination with an annealing oven formed with a central space and an annealing chamber surroimding said space, a

heating chamber surrounding said annealing chamber, a vertical shaft in said central oven space, a carrier on the shaft having a floor which extends into the annealing chamber, a supporting structure composed of superimposed transversely arranged beams which engage on the oven top and extend over the said central space of the oven, said shaft having its upper end journaled in said supporting structure, a casting surrounding the shaft and supporting the inner side wall of the heating and annealing chambers, and a series of rods connected to said casting and to said supporting structure to suspend said casting from the floor.

8. In an annealing oven, a pair of spaced horizontal annuli, a pairof vertical side walls at the peripheral portions of said annuli, a roof connected to said side walls, a second pair of vertical side walls at the inner circumferences of the annuli spaced from the first named side walls, a roof connected to the second named side walls and being spaced from the first named roof, and a carrier projecting into the space between said annuli. n

9. In an annealing oven, an annular annealing chamber having an open bottom, a rotatable carrier alining with said open bot tom of the annealing chamber, said carrier having a series of tiles on its upper face which tiles project into the annealing chamber, and a'series of vertical tiles arranged along one of the vertical faces of said carr1er..

10. In an annealing oven,'an annular annealing chamber having an open bottom, a heating chamber surrounding the sides and the top of said annealing chamberfia fire chamber communicating with the heating chamber and having a partition therein to form two compartments, a source of heat in each compartment, and a partition in the heating chamber alined with said first named partition to cause the heat issuing from said fire chamber to course in opposite directions in the heating chamber.

11. In an annealing oven having a central opening, an annular annealing chamber and an annular heating chamber surrounding the annealing chamber, said heating chamber surrounding said central opening of the oven and having its outer wall and that .of

the annealing chamber supported by the oven, a vertical shaft in said oven opening, means surrounding the shaft to engage and support the inner walls of the annealing and heating chambers, means to support said first means from the oven top, and a carrier on the shaft to carry the articles to be annealed through said an nealing chamber.

12. In an annealing oven having a central opening, an annularannealing chamber and an annular heating chamber surrounding the annealing chamber, said heating chamber surrounding said central opening of the oven and having its outer wall and that of the annealing chamber supported by the oven, a vertical shaft in said oven opening, means surrounding the shaft to engage and support the inner walls of the annealing and heating chambers, means to support said first means from the oven top, a carrier on the shaft to carry the articles to be annealed through said annealing chamber, and means to inject heat into the heating chamher to cause same to flow in opposite directions therein.

13. An annealing oven including an annealing chamber, a carrier therein, and tiles on the carrier arranged in end to end abutting relation having openings which communicate wit-h opposite sides of the annealing chamber, the top faces of the tiles above the openings forming a continuous floor to receive the articles to be annealed.

14. An annealing oven including an annular-heating chamber having a heat receiving inlet, means extending in the inlet to divide the chamber into two compartments, and means to supply heat to the inlet so that the heat will enter each compartment and flow in relative opposite directions therein.

15. In an annealing oven, a pair of spaced annuli, a carrier rotating in the space between the annuli, an annealing chamber including side Walls seating on and arranged at the confronting portions of said annuli, and a heating chamber surrounding the annealing chamber and including side Walls which seat on said annuli at the opposite portions thereof.

16. An annealing oven including a ring like annealing chamber having an open bottom, a ring-like carrier projecting in said open bottom of the annealing chamber, and a heating chamber of ring-like form which surrounds the annealing chamber.

17. An annealing oven including an annular heating chamber embodying a bottom formed of spaced annuli, a side wall seating on each annulus, and a top composed of pairs of oppositely disposed tiles having their inner ends meeting at a point and having their lower ends seating on the upper ends of the side walls.

18. In an annealing oven, an annular heating chamber including a base formed of two spaced annuli, a side wall seating on each annulus and a top carried by the side walls, an annealing chamber located within the heating chamber including a side wall seating on each annulus in spaced relation to the side walls of the heating chamber, a tongue and groom joint between the lower ends of the side walls of the annealing chamber and said annuli, a roof supported on the upper ends of said sidewalls of the annealing chamber, and means holding the upper ends of the side walls of the annealing chamber in spaced relation to said side walls of the heatlng chamber.

19. In an annealing oven, a pair of spaced annuli, an annealing chamber having a top and side walls one of the latter seating on one annuli and the other seating on the other of the annuli, a heating chamber surrounding the annealing chamber and having a top spaced from the top of the annealing chamber and side walls spaced from the side walls of the annealing chamber, one of the side walls of the heating chamber seating on one of the annuli and the other side wall thereof seating on the other of said annuli, means to supply heat in the space between said chambers, and means to cause the heat to course in opposite directions in the said space.

20. In an annealing oven, an annular annealing chamber, an annular carrier in said chamber, a hollow casting seating on top of the carrier and having an apron which de pends therefrom and extends over the outer side face of the carrier, a series of vertical tiles arranged to overlie said apron and extending adjacent the upper face of the carrier, and a series of open-ended tiles seating on said casting and engaged with the upper ends of said vertical tiles.

21. In an annealing oven an annealing chamber, and a carrier having hollow openended tiles on its top which project in said chamber and vertical tiles along one side thereof depending from the bottoms of the first named tiles.

22. In an annealing oven, an annealing chamber, a casting, a tile annulus seating on said casting, said annealing chamber having one of its side walls seating on said tile annulus, said casting having a horizontal ledge, and vertical tiles seating on said ledge and interlockingly engaged with said tile annulus.

23. In an annealing oven, an annealing chamber, a casting, a tile annulus seating on said casting, said annealing chamber having one of its side walls seating on said tile annulus, and a series of vertical tiles arranged on the outer face of said casting to act as heat protectors.

24. In an annealing oven, a horizontal anunlar annealing chamber, a horizontal annular heating chamber surrounding the annealing chamber, a fire chamber extending into the heating chamber at the periphery thereof so as to communicate therewith, a partition in the fire chamber dividing same into two compartments, and means to supply heat to each of the fire chamber compartments.

25. In an annealing oven, a horizontal annular annealing chamber, a horizontal annular heating chamber surrounding the annealing chamber, a fire chamber extending to supply heat to each of the fire chamber into the heating chamber at the periphery compartments. thereof so as to communicate therewith, a In testimony whereof I hereunto afiix my partition in the fire chamber dividing same signature in the presence of two witnesses. into two compartments, heat deflecting means alining with said partition and located between the two chambers and extending over the annealing chamber, and means ALBERT J. MEIER. Witnesses:

ISABELLA M. DUNLAP, ARCHER W. RICHARDS. 

